Tire.



R. E. STURMAN.

TIRE.

APPLICATION FILED IUI IE I5, I914 Patented m 15, 1915'.

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ROBERT E. STURMAN, 0F FRANKLIN TOWNSHIP, WRIGHT COUNTY, MINNESOTA.

TIRE.

Application filed June 15, 1914.

To all whom it may concern:

Be it known that I, Ronnar E. S'rmmnm, a citizen of the United States, resident of Franklin township, in the county of fright and State of Minnesota, have invented certain new and useful Improvements in Tires, of which the following is a specification. I

My invention relates to vehicle tires, and is an improvement over the form shown and described in Letters Patent No. 1,094,034, issued to me April 21, 1914, and the main ob ject of the present invention is to simplify the structure and assembling of the tire over the form shown in the said patent.

Inthe patentediorm the tire sections are superimposed and overlapping, but the tr rad iolding plates are separateand riveted to the inner plates, whereas in the present form I recess the outer surfaces of all the sections whereby a tread holding channel is formed in the sections themselves; i'urther, in the old form I provide a continuous rim 5, having a dovetailed groove therein for the reception of the tire sections, vvedges being employed to hold the ends of the sections apart, but in the present form I make the rim of two similar parts, one on each side of the wheel folly, and bolted together, the section ends being held between said rim members and a wedge-shaped ring or" a greater diameter between saidniembers, and I also provide means for preventing the creeping of the tread upon the tire sections.

llly invention is fully described in the following speeificatioinof which the accompanying drawings form a part, in which the separate parts are designated by the same relere'nee characters in each of the views, and in which Figure l is a fragmentary, side, elevation of a tire constructed in accordance with my present invention, partly in section on the line ll of Fig. 2; Fig 2 is a section taken on the line of Fig. l; and Fig. 3 a perspective view of one of the tire sections, ron'iovod l'roni the tire.

in the drawings forming a part of this up pliration' l have shown a portion of a vehicle wheel comprising the usual or any (le sired l'elly u, llllll'SPUliUS (1 my tire being mounted upon said folly and locked there to, [be present tire sections 1) and I) being superimposed and overlapped in the same Inannor as in the patent referred to, but said Specification of Letters Patent.

Patented June 15, 1915. Serial No. 845,239. I

in the sections (2 receiving the rubber tread c and which, as clearly shown at 0 extends slightly beyond the sides of the channel in which it is held, thus distributing the load on said members within the channel and on each side thereof, but the inner ends of the tire sections 5 and b aresimilar to those shown in my patent, out-turned as shown at 5*.

The rim consists of two similar members; (Z and 1/ one on each side of the telly a, and having, each, an inwardly directed portion a? resting on the outer face of the folly, and a flange d adapted to be brought to bear upon the corresponding side of the folly, and an outwardly directed flange (Z beyond the portion 11 and the inner side of which is inwardly flared whereby a dove-tailed groove (7 is formed between the two rim sections for the reception of the ends 5* of the tire sections 7) and. if, and a plurality of bolts '1 having nuts (Z thereon, hold the rim members (Z and (Z firmly against the. folly sides. I also provide a ring 6, Wedgeshaped in cross section and of less transverse width than the distance between the rim flanges and of an internal diameter approximating that of the circle formed by the outer surfaces of the bolts (1, whereby said ring will rest upon said belts, or approximately so, and the ends of the tire sections rest between the ring 6 and the corresponding rim flanges (Z as clearly shown in Fig. 2, and I also provide a spike f in a number of the inner tire sections 5, suitably spaced in the tread groove, to prevent the tendency of said trend to creep around the tire.

It will be seen, from the foregoing and by reference to Fig. 2, that assembling ofv my present tire is much more easily accomplished than was possible with the patented form referred to, as one of the rim members i tions, whereby the appearance of the present pneumatic tire is exactly imitated.

My invention is very simple, thoroughly eiiicient as demonstrated by test, of a con tinuous resiliency determined by the load to be placed thereon, not requiring the care in inflation required. by pneumatic tires in the degree of atmospheric temperature, and comparatively inexpensive and, with a reservation to myself of all such changes in and modifications of the details shown and described as properly come within the scope of the following claim.

What I claim as new, and desire to secure by Letters Patent, is

The combination With a vehicle Wheel, of

a tire comprising an inner series of trans-- respect to the jointsof the other series, the 30 sections of each series being recessed in the outer surfaces thereof and the recessed portions of the outer sections being nested in the recesses of the inner sections, a tread in the peripheral groove formed by the recesses of saidoutersections, and means for maintaining said sections in relative positions, comprising a pointed projection on each of a plurality of inner sections outwardly directed betweenthe corresponding outcnscctions, and pro1ecting into said tread.

In testimony that I claim the foregoing as my invention I have signed my name in presence of the subscribing Witnesses.

v FRED A. IiNOLL, WM. STURMAN. 

